Police believe a surfer missing off the South Australian coast died in a suspected shark attack.
The 46-year-old Elliston man was surfing at Walkers Rock Beach, about 365 kilometres west of Adelaide, when he was attacked on Saturday morning.
The man has been identified in media reports as local teacher Simon Baccanello.
No one else was injured in the incident, which was witnessed by multiple surfers.
Police, State Emergency Service and local community members spent the day searching for the man but were unable to locate him.
The incident occurred near a reef break popular with surfers in an area with a history of shark attacks.
South Australian police are due to provide an update about the attack and subsequent search on Sunday morning.